Loongson Unveils 64-Core LS3C6000 Server CPUs to Rival Intel "Ice Lake-SP" Xeons

[AleksandarK]

China's Loongson has introduced its latest server processor family, the LS3C6000 series, its most powerful domestically designed processor. These new chips use Loongson's fourth-generation microarchitecture and pack 16 64-bit superscalar LA664 cores on each die. With simultaneous multi-threading, the single-die "S" model handles 32 logical threads, while the dual-die "D" and quad-die "Q" versions support 64 and 128 threads, respectively. Operating between 2.0 GHz and 2.2 GHz, the family delivers peak double-precision FP64 performance of 844.8 GigaFLOPS for S units, 1.612 TeraFLOPS for D units, and 3.072 TeraFLOPS for Q units. Each core benefits from 64 KB of dedicated instruction cache and 64 KB of data cache, plus a 256 KB private L2 cache, while a shared 32 MB L3 cache serves all cores on a die.

Memory bandwidth is served by four 72-bit DDR4-3200 channels in the S version and eight channels in larger SKUs, and connectivity comes via 64 PCI Express lanes for S models and 128 lanes for D and Q models, alongside SPI, UART, I²C and GPIO ports. Security is addressed through an integrated SE module with a secondary LA264 core that accelerates SM2, SM3, and SM4 cryptographic functions. Loongson relies on its proprietary Coherent Link interconnect, which uses PCI Express-style links and board-level direct paths to scale up to 256 logical cores in multi-socket systems. Power consumption ranges from 100 to 120 W for S parts, 180 to 200 W for D parts, and 250 to 300 W for Q parts. Loongson suggests that its 16-core S model competes with Intel's (now old) third-generation Xeon Scalable processors, while its 64-core Q model is roughly comparable to the Xeon Platinum 8380 with 40 cores and 80 threads.



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[Daven]

It will be interesting to see if China can fully move all of its computing infrastructure for both consumer and enterprise products to locally made chips. If successful, this will have a major impact on US companies. I'm not sure what our global economy will look like if regions start to isolate themselves to just their own products.

 

[ZoneDymo]

seems like a loongshot

 

[Luisds]

It will be interesting to see if China can fully move all of its computing infrastructure for both consumer and enterprise products to locally made chips. If successful, this will have a major impact on US companies. I'm not sure what our global economy will look like if regions start to isolate themselves to just their own products.

In fact, the root cause of China's development of these chips is that the US government banned their sale.

 

[Daven]

In fact, the root cause of China's development of these chips is that the US government banned their sale.

Yep. Which is why I find all these home-brew efforts so fascinating.

 

[Grimling]

the utter most important question of course is:
can it run Crysis?

 

[Daven]

the utter most important question of course is:
can it run Crysis?

I'm actually running Crysis on a computer powered by all the 'Can it run Crysis' comments across the internet. Every time someone posts I get another 0.1 fps so keep 'em coming.

 

[igormp]

four 72-bit DDR4-3200 channels

Weird way to say it supports DDR4 ECC RDIMMs, but ok lol
Actual data bus size is still 64-bit per channel, given that the extra ones are for parity.

 

[R-T-B]

In fact, the root cause of China's development of these chips is that the US government banned their sale.

Loongson has been in constant development since the early 2010s at least, so no.

That said, funding did go way up for Loongson with sanctions.

 

[kondamin]

It will be interesting to see if China can fully move all of its computing infrastructure for both consumer and enterprise products to locally made chips. If successful, this will have a major impact on US companies. I'm not sure what our global economy will look like if regions start to isolate themselves to just their own products.

Progress will slowdown even further but there will be a divergence of technologies which will require their own solutions to overcome.

And that can be a good thing

 

[slyphnier]

It will be interesting to see if China can fully move all of its computing infrastructure for both consumer and enterprise products to locally made chips. If successful, this will have a major impact on US companies. I'm not sure what our global economy will look like if regions start to isolate themselves to just their own products.

it will be years before the ecosystem mature, they need to create & catch-up software-side too
i mean just look at windows OS, there tons alternative OS and tons of people hate windows, so why windows still holding like 60% OS shares in the world?
and not every country pushing like what china doing, heck most developing country wont even possible to create things in high-tech industry

dont think it create major impact on US companies,other than less sales, as long rest of countries still using US company products
will rest of countries switch china computing products? they probably making "global-version" etc. but will consumer pick those over what already proven working for years from amd-intel-nvidia-microsoft-google ?

 

[Daven]

Loongson has been in constant development since the early 2010s at least, so no.

That said, funding did go way up for Loongson with sanctions.

And the US has been in a trade war with China since forever.

 

[jpvalverde85]

The specs look surprisingly similar to the chips Hygon commercialized, rebranded Epyc 7001 series with dialed down number crunching machinery. I know that probably isn't the case but seems Loongson is coming to the game pretty soon.

 

[R-T-B]

And the US has been in a trade war with China since forever.

No, it hasn't. The trade war started with the first Trump admin.

The specs look surprisingly similar to the chips Hygon commercialized, rebranded Epyc 7001 series with dialed down number crunching machinery. I know that probably isn't the case but seems Loongson is coming to the game pretty soon.

It isn't. IIRC loongson uses a MIPS derived instruction set, for starters.

 

[kondamin]

No, it hasn't. The trade war started with the first Trump.

Nah been going on since Bush W, saw a small reprieve under Obama I because bankers ruined the financial system and China was the only one capable of fixing it. Then by Obama II it started going again with things like the tptt which excluded China.

probably even earlier but I was to young back then to notice.


Any whoooo I like competing architectures